• Anti-type II collagen antibodies, anti-CCP, IgA RF and IgM RF are associated with joint damage, assessed eight years after onset of juvenile idiopathic arthritis (JIA) 

      Berntson, Lillemor; Nordal, Ellen Berit; Fasth, Anders; Aalto, Kristiina; Herlin, T; Nielsen, Susan; Rygg, Marite; Zak, M; Ronnelid, J (Journal article; Peer reviewed, 2014)
      Background: Early appearance of antibodies specific for native human type II collagen (anti-CII) characterizes an early inflammatory and destructive phenotype in adults with rheumatoid arthritis (RA). The objective of ...
    • Association of treatment procedures and resilience to symptom load three-years later in a clinical sample of adolescent psychiatric patients 

      Gårdvik, Kari Skulstad; Rygg, Marite; Torgersen, Terje; Wallander, Jan Lance; Lydersen, Stian; Indredavik, Marit Sæbø (Peer reviewed; Journal article, 2021)
      Background We aimed to examine symptom load in a clinical adolescent population at three-year follow-up and explore associations with standard care treatment procedures and resilience factors upon first presenting at Child ...
    • Brief Report: The Genetic Profile of Rheumatoid Factor?Positive Polyarticular Juvenile Idiopathic Arthritis Resembles That of Adult Rheumatoid Arthritis 

      Hinks, Anne; Marion, Miranda C.; Cobb, Joanna; Comeau, Mary E.; Sudman, Marc; Ainsworth, Hannah C.; Bowes, John; Becker, Mara L.; Bohnsack, John F.; Haas, Johannes-Peter; Lovell, Daniel J.; Mellins, Elizabeth D.; Nelson, J. Lee; Nordal, Ellen Berit; Punaro, Marilynn; Reed, Ann M.; Rose, Carlos D.; Rosenberg, Alan M.; Rygg, Marite; Smith, Samantha L.; Stevens, Anne M.; Videm, Vibeke; Wallace, Carol A.; Wedderburn, Lucy R.; Yarwood, Annie; Yeung, Rae S.M.; Langefeld, Carl D.; Thompson, Susan D.; Thomson, Wendy; Prahalad, Sampath (Journal article; Peer reviewed, 2018)
    • Changing patterns in treatment, remission status, and categories in a long-term Nordic cohort study of juvenile idiopathic arthritis 

      Glerup, Mia; Arnstad, Ellen Dalen; Rypdal, Veronika; Peltoniemi, Suvi; Aalto, Kristiina; Rygg, Marite; Nielsen, Susan; Fasth, Anders; Berntson, Lillemor; Nordal, Ellen Berit; Herlin, Troels (Peer reviewed; Journal article, 2022)
      Objective To explore sustainability of achieved remission off medication and defined International League of Associations for Rheumatology (ILAR) categories in juvenile idiopathic arthritis (JIA) and describe the ...
    • Complement lectin pathway protein levels reflect disease activity in juvenile idiopathic arthritis: A longitudinal study of the Nordic JIA cohort 

      Glerup, Mia; Thiel, Steffen; Rypdal, Veronika Gjertsen; Arnstad, Ellen Dalen; Ekelund, Maria; Peltoniemi, Suvi; Aalto, Kristiina; Rygg, Marite; Nielsen, Susan; Fasth, Anders; Berntson, Lillemor; Nordal, Ellen Berit; Herlin, Troels (Journal article; Peer reviewed, 2019)
      Background To determine the serum levels of the lectin pathway proteins early in the disease course and 17 years after disease onset and to correlate the protein levels to markers of disease activity in participants ...
    • Dental caries in children and adolescents with juvenile idiopathic arthritis and controls: a multilevel analysis 

      Gil, Elisabeth G.; Åstrøm, Anne-Kristine N; Lie, Stein Atle; Rygg, Marite; Fischer, Johannes; Rosén, Annika; Bletsa, Athanasia; Luukko, Keijo; Shi, Xie-Qi; Halbig, Josefine; Frid, Paula; Cetrelli, Lena Elisabet; Tylleskär, Karin; Rosendahl, Karen; Skeie, Marit Slåttelid (Peer reviewed; Journal article, 2021)
      Background Optimal utilization of dental caries data is crucial in epidemiological research of individuals with juvenile idiopathic arthritis (JIA). The aims were to: explore whether caries is more prevalent among children ...
    • Dental plaque and gingival bleeding in adolescents with juvenile idiopathic arthritis and controls: a multilevel analysis 

      Gil, Elisabeth Grut; Åstrøm, Anne-Kristine N; Lie, Stein Atle; Rygg, Marite; Fischer, Johannes; Rosén, Annika; Bletsa, Athanasia; Luukko, Keijo Aukusti; Shi, Xie-Qi; Halbig, Josefine Mareile; Frid, Paula Hanna Therese; Cetrelli, Lena Elisabet; Tylleskär, Karin; Rosendahl, Karen; Skeie, Marit Slåttelid (Peer reviewed; Journal article, 2022)
      Objective To explore whether plaque and gingival bleeding are more frequently experienced by adolescents with juvenile idiopathic arthritis (JIA) compared to matched controls without JIA; explore whether surface- and ...
    • Distinct interferon signatures and cytokine patterns define additional systemic autoinflammatory diseases. 

      de Jesus, Adriana Almeida; Hou, Yangfeng; Brooks, Stephen; Malle, Louise; Biancotto, Angelique; Huang, Yan; Calvo, Katherine R.; Marrero, Bernadette; Moir, Susan; Oler, Andrew J.; Deng, Zuoming; Sanchez, Gina A. Montealegre; Ahmed, Amina; Allenspach, Eric; Srabshahi, Bita; Behrens, Edward M.; Benseler, Susanne; Berzrodnik, Liliana; Bout-Tabaku, Sharon; Brescia, AnneMarie; Brown, Diane; Burnham, Jon M.; Caldirola, Maria Soledad; Carrasco, Ruy; Chan, Alice; Cimaz, Rolando; Dancey, Paul; Dare, Jason; DeGuzman, Marietta; Dimitriades, Victoria; Ferguson, Ian; Ferguson, Polly J.; Finn, Laura; Gattorno, Marco; Grom, Alexei; Hanson, Eric P.; Hashkes, Philip; Hedrich, Christian M.; Herzog, Ronit; Horneff, Gerd; Jerath, Rita; Kessler, Elizabeth; Kim, Hanna; Kingsbury, Daniel J.; Laxer, Ronald M; Lee, Pui Y.; Lee-Kirsch, Min Ae; Lewandowski, Laura; Li, Suzanne; Lilleby, Vibke; Mammadova, Vafa; Moorthy, Lakshmi N.; Nasrullayeva, Gulnara M.; O'Neill, Kathleen; Onel, Karen; Ozen, Seza; Pan, Nancy; Pillet, Pascal; Piotto, Daniela G. P.; Punaro, Marilynn G.; Reiff, Andreas; Reinhardt, Adam L.; Rider, Lisa G.; Rivas-Chacon, Rafael; Ronis, Tova; Rosen-Wolff, Angela; Roth, Johannes; Ruth, Natasha Mckerran; Rygg, Marite; Schmeling, Heinrike; Schulert, Grant; Scott, Christiaan; Seminario, Gisella; Schulman, Andrew; Sivaraman, Vidya; Son, Mary Beth; Stepanovskiy, Yuriy; Stringer, Elizabeth; Taber, Sara; Terreri, Maria Teresa; Tifft, Cynthia J; Torgerson, Troy R.; Tosi, Laura; Royen-Kerkhof, Annet Van; Muskardin, Theresa Wampler; Canna, Scott W.; Goldbach-Mansky, Raphaela (Peer reviewed; Journal article, 2020)
      BACKGROUND. Undifferentiated systemic autoinflammatory diseases (USAIDs) present diagnostic and therapeutic challenges. Chronic interferon (IFN) signaling and cytokine dysregulation may identify diseases with available ...
    • Early self-reported pain in juvenile idiopathic arthritis (JIA) is related to long-term outcomes. Results from the Nordic JIA cohort study. 

      Arnstad, Ellen Dalen; Rypdal, Veronika Gjertsen; Peltoniemi, Suvi; Herlin, T; Berntson, Lillemor; Fasth, Anders; Nielsen, Susan; Glerup, Mia; Ekelund, Maria; Zak, Marek; Aalto, Kristiina; Nordal, Ellen Berit; Romundstad, Pål Richard; Rygg, Marite (Journal article; Peer reviewed, 2018)
      Objective To study self‐reported pain early in the disease course of juvenile idiopathic arthritis (JIA) as predictor of long‐term disease outcomes. Methods Consecutive cases of JIA with disease onset 1997‐2000 from ...
    • Fatigue in young adults with juvenile idiopathic arthritis 18 years after disease onset: data from the prospective Nordic JIA cohort 

      Arnstad, Ellen Dalen; Glerup, Mia; Rypdal, Veronika Gjertsen; Peltoniemi, Suvi; Fasth, Anders; Nielsen, Susan; Zak, Marek; Aalto, Kristiina; Berntson, Lillemor; Nordal, Ellen Berit; Herlin, Troels; Romundstad, Pål Richard; Rygg, Marite (Journal article; Peer reviewed, 2021)
      Background: To study fatigue in young adults with juvenile idiopathic arthritis (JIA) 18 years after disease onset, and to compare with controls. Methods: Consecutive children with onset of JIA between 1997 and 2000, from ...
    • Final height and BMI in juvenile idiopathic arthritis: Results from a Nordic JIA cohort followed for 18 years 

      Monterotti, Irene Elena (Master thesis, 2020)
      SAMMENDRAG Bakgrunn: Juvenil idiopatisk artritt (JIA) er en kronisk sykdom hos barn, hvor vekstavvik er en mulig konsekvens av sykdommen. Vårt mål var å studere slutthøyde og kroppsmasseindeks (BMI) i en nordisk JIA-kohort ...
    • Fine-mapping the MHC locus in juvenile idiopathic arthritis (JIA) reveals genetic heterogeneity corresponding to distinct adult inflammatory arthritic diseases 

      Hinks, A; Bowes, J; Cobb, J; Ainsworth, HC; Marion, MC; Comeau, ME; Sudman, M; Han, B; Becker, ML; Bohnsack, JF; de Bakker, PIW; Haas, JP; Hazen, M; Lovell, DJ; Nigrovic, PA; Nordal, Ellen Berit; Punnaro, M; Rosenberg, AM; Rygg, Marite; Smith, S.L.; Wise, CA; Videm, Vibeke; Wedderburn, LR; Yarwood, A; Yeung, RSM; Prahalad, S; Langefeld, CD; Raychaudhuri, S; Thompson, SD; Thomson, W (Journal article; Peer reviewed, 2017)
      Objectives Juvenile idiopathic arthritis (JIA) is a heterogeneous group of diseases, comprising seven categories. Genetic data could potentially be used to help redefine JIA categories and improve the current classification ...
    • Growth and puberty in a Norwegian juvenile idiopathic arthritis (JIA) cohort 

      Sæterdal, Marie Ellinor; Støen, Ingrid Bråten (Master thesis, 2023)
      Bakgrunn: Juvenil idiopatisk artritt (JIA) er en kronisk inflammatorisk sykdom med en heterogen pasientgruppe som affiseres på mange områder. Vekst kan bli påvirket av pågående inflammasjon, påvirket kosthold og bruk av ...
    • Growth and puberty in a Norwegian juvenile idiopathic arthritis (JIA) cohort – Results from the NorJIA study 

      Sæterdal, Marie Ellinor; Støen, Ingrid Bråten (Master thesis, 2023)
      Sammendrag Bakgrunn: Juvenil idiopatisk artritt (JIA) er en kronisk inflammatorisk sykdom med en heterogen pasientgruppe som affiseres på mange områder. Vekst kan bli påvirket av pågående inflammasjon, påvirket kosthold ...
    • Identification of a regulatory pathway governing TRAF1 via an arthritis-associated non-coding variant 

      Wang, Qiang; Martínez-Bonet, Marta; Kim, Taehyeung; Sparks, Jeffrey A.; Ishigaki, Kazuyoshi; Chen, Xiaoting; Sudman, Marc; Aguiar, Vitor; Sim, Sangwan; Hernandez, Marcos Chiñas; Chiu, Darren J.; Wactor, Alexandra; Wauford, Brian; Marion, Miranda C.; Gutierrez-Arcelus, Maria; Bowes, John; Eyre, Stephen; Nordal, Ellen Berit; Prahalad, Sampath; Rygg, Marite; Videm, Vibeke; Raychaudhuri, Soumya; Weirauch, Matthew T.; Langefeld, Carl D.; Thompson, Susan D.; Nigrovic, Peter A. (Peer reviewed; Journal article, 2023)
      TRAF1/C5 was among the first loci shown to confer risk for inflammatory arthritis in the absence of an associated coding variant, but its genetic mechanism remains undefined. Using Immunochip data from 3,939 patients with ...
    • Imaging of the temporomandibular joint in children with juvenile idiopathic arthritis; references and novel scoring systems for active and permanent disease 

      Angenete, Oskar W (Doctoral theses at NTNU;2022:121, Doctoral thesis, 2022)
      Sammendrag / Summary in Norwegian Bildediagnostikk av kjeveleddet hos barn med barneleddgikt; referansemateriale og skåringssystemer for å vurdere aktiv sykdom og permanent skade Barneleddgikt (juvenil idiopatisk artritt, ...
    • Incidence and predictors of Uveitis in juvenile idiopathic arthritis in a Nordic long-term cohort study. Incidence and predictors of Uveitis in juvenile idiopathic arthritis in a Nordic long-term cohort study 

      Nordal, Ellen Berit; Rypdal, Veronika Gjertsen; Christoffersen, terje; Aalto, Kristiina; Berntson, Lillemor; Fasth, Anders; Herlin, Troels; Nielsen, Susan; Peltoniemi, Suvi; Straume, Bjørn; Zak, Marek S.; Rygg, Marite (Journal article; Peer reviewed, 2017)
      Background The incidence of uveitis associated with juvenile idiopathic arthritis (JIA) varies around the world. Our aim was to investigate the incidence and predictors of uveitis in a Nordic population-based cohort. ...
    • Increased incidence of inflammatory bowel disease on etanercept in juvenile idiopathic arthritis regardless of concomitant methotrexate use 

      van Straalen, Joeri W.; Krol, Roline; Giancane, Gabriella; Panaviene, Violeta; Ailioaie, Laura Marinela; Dolezalova, Pavla; Cattalini, Marco; Susic, Gordana; Sztajnbok, Flavio; Maritsi, Despoina; Constantin, Tamas; Sawhney, Sujata; Rygg, Marite; Oliveira, Sheila K.; Nordal, Ellen Berit; Saad-Magalhaes, C; Rubio-Perez, Nadina; Jelusic, Marija; de Roock, Sytze; Wulffraat, Nico; Ruperto, Nicolino; Swart, Joost Frans; International Trials Org, Paediatric Rheumatology (Peer reviewed; Journal article, 2021)
      Objectives: To describe risk factors for inflammatory bowel disease (IBD) development in a cohort of children with juvenile idiopathic arthritis (JIA). Methods: JIA patients who developed IBD were identified from the ...
    • Inflammatory Biomarkers Can Differentiate Acute Lymphoblastic Leukemia with Arthropathy from Juvenile Idiopathic Arthritis Better Than Standard Blood Tests 

      Brix, Ninna; Glerup, Mia; Foell, Dirk; Kessel, Christoph; Wittkowski, Helmut; Berntson, Lillemor; Fasth, Anders; Nielsen, Susan; Nordal, Ellen Berit; Rygg, Marite; Hasle, Henrik; Herlin, Troels (Peer reviewed; Journal article, 2023)
      Objective To evaluate the predictive value of biomarkers of inflammation like phagocyte-related S100 proteins and a panel of inflammatory cytokines in order to differentiate the child with acute lymphoblastic leukemia ...
    • Is chronic non-spesific pain in adolescent girls related to early puberty?: Young-HUNT3 (2006-2008) 

      Kløven, Barbro (Master thesis, 2013)
      The main aim of this study was to assess if there was a relationship between early menarche and chronic non-specific pain in adolescents aged 13-18. We used data from the Young-HUNT3 (2006-2008) study where all adolescents ...